Hi, I am planning to embed R in a Windows application. I would like to know if the R.dll dynamic library is threadsafe? Is it possible to have more than one thread calling R functions concurrently? Note that I am using Windows XP SP2 with R 2.2.1 on a dual processor SMP machine. The last information I found in the R-devel archives was a mail from Duncan Temple Lang on 07-Nov-2005 saying there was a plan to make it threadsafe before the end of the year (http://tolstoy.newcastle.edu.au/R/devel/05/11/3110.html). --Kannan.